Answer:
x= -1/8
Step-by-step explanation:
try using symbolab
General vertex form:

Given :

Extract "spread factor" m

Complete the square


Write as a squared binomial and simplify the constant

Re-write to match signs of standard general form:

Answer:
40/8=5
Other side length = 5
Step-by-step explanation:
You answer is correct. For example
Even:
16+4 = 20
194+4=198
Odd:
13+4=17
235+4=239
1st. is definitely 150.
2nd. is a i think
3rd. is 100